def extract_audio(input_file):
    with open(input_file, 'rb') as file:
        byte = file.read(4)
        while byte:
            print(byte)
            byte = file.read(4)


if __name__ == "__main__":
    input_file = input("请输入要提取音频的MP4文件路径：")
    extract_audio(input_file)